At least one person has been hospitalized with the illness, officials said.

Cases have also been reported in Nebraska and other Midwestern states.

Fresh produce has been identified as the source of previous outbreaks. Washing fresh produce is recommended; however, it can be very difficult to wash Cyclospora off all types of produce.

"It's sort of sticky. We do recommend that everybody wash their produce, fruits and vegetables thoroughly. But we do know from experience that will reduce the risk, but it may not take the risk away all together," said Quinlisk.